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#!/usr/bin/perl
use strict;
use warnings;
use Encode 'encode_utf8';
use Cwd 'abs_path';
eval { require JavaScript::Minifier::XS; };
our($ROOT, %O);
BEGIN { ($ROOT = abs_path $0) =~ s{/util/jsgen\.pl$}{}; }
use lib "$ROOT/lib";
use lib "$ROOT/yawf/lib";
use LangFile;
# The VNDB::L10N module is not really suited to be used outside the VNDB::*
# framework, but it's the central location that defines which languages we have
# and in what order to display them.
use VNDB::L10N;
my $jskeys = qr{^(?:
_js_.+|
_menu_emptysearch|
_vnpage_uopt_10?vote
)$}x;
sub l10n {
# Using JSON::XS or something may be shorter and less error prone,
# although I would have less power over the output (mostly the quoting of the keys)
my $lang = LangFile->new(read => "$ROOT/data/lang.txt");
my @r;
push @r, 'L10N_STR = {';
my $cur; # undef = none/excluded, 1 = awaiting first TL line, 2 = after first TL line
my %lang;
while((my $l = $lang->read())) {
my $type = shift @$l;
if($type eq 'key') {
my $key = shift @$l;
push @r, ' }' if $cur;
$cur = $key =~ $jskeys ? 1 : undef;
if($cur) {
$r[$#r] .= ',' if $r[$#r] =~ /}$/;
# let's assume key names don't trigger a reserved word in JS
$key = qq{"$key"} if $key !~ /^[a-z_][a-z0-9_]*$/i;
push @r, qq| $key: {|;
}
}
$lang{$l->[0]} = 1 if $type eq 'tl';
if($type eq 'tl' && $cur) {
my($lang, $sync, $val) = @$l;
next if !$val;
$val =~ s/"/\\"/g;
$val =~ s/\n/\\n/g;
$r[$#r] .= ',' if $cur == 2;
$lang = q{"$l->[0]"} if $lang =~ /^(?:as|do|if|in|is)$/; # reserved two-char words
push @r, qq| $lang: "$val"|;
$cur = 2;
}
}
push @r, ' }' if $cur;
push @r, '};';
push @r, 'L10N_LANG = [ '.join(', ', map qq{"$_"}, VNDB::L10N::languages()).' ];';
return join "\n", @r;
}
sub jsgen {
# JavaScript::Minifier::XS doesn't correctly handle perl's unicode,
# so just do everything in raw bytes instead.
my $js = encode_utf8(l10n()) . "\n\n";
open my $JS, '<', "$ROOT/data/script.js" or die $!;
$js .= join '', <$JS>;
close $JS;
open my $NEWJS, '>', "$ROOT/static/f/script.js" or die $!;
print $NEWJS $JavaScript::Minifier::XS::VERSION ? JavaScript::Minifier::XS::minify($js) : $js;
close $NEWJS;
}
jsgen;
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